It's about one-fifteen-thousandth the number of Copies of Wii Sports Sold.

In other words, 5,500 is 0.00006651 times the count of Copies of Wii Sports Sold, and the count of Copies of Wii Sports Sold is 15,040 times that amount.

(a.k.a. Wii スポーツ, a.k.a. Wi Supotsu) (2006 edition) (sales figures as of March 31, 2015) Wii Sports, the version that was bundled with the original Wii console, has sold 82.69 million units as of March, 2015.